Rail-switch.



T. R. DUNCAN.

RAIL SWITCH.

APPLICATION FILED MAR. 15, 1910'.

Patented Nov. 22, 1910.

v. 4: NORRIS PETERS 00.. wAsHmcmrv, n. c.

THOMAS R. DUNCAN, OF RICHMOND, CALIFORNIA.

RAIL-SWITCH.

Specification of Letters Patent.

Patented Nov. 22, 1910.

Application filed March 15, 1910. Serial No. 549,459.

To all whom it may concern:

Be it known that I, THOMAS E. DUNCAN, a citizen of the United States,residing at Richmond, in the county of Contra Costa and State ofCalifornia, have invented certain new and useful Improvements in Rail-Switches, of which the following is a specification.

This invention relates to switches for rail ways and the principalobject of the same is to provide a switch at the point where astationary frog is usually employed, the track at the junction with saidswitch being provided with extended rails to provide guards for theswitch which protect the same from damage by the wheels and which alsoguide the wheels to the switch so that danger of the wheels jumping theswitch is prevented.

The drawing shows a top plan view of the invention with the switch frogin position to close the main line.

Referring to the drawing by numerals wherein the invention has beenshown in a top plan and applied to the junction of a main line and asiding, 12 designate the rails of the main line and 34 designate therails of the siding. Switches 56 are employed for connecting the mainline and siding, said switches being connected by a rod 7 andsimultaneously operated by the usual switch stand 8. Main rail 2terminates in a short, substantially right angular extension 9 fromwhich the integral guard rail 10 projects. Siding rail 41- whichconverges toward main rail 2 terminates in a short angular extension 11that projects in an opposite direction to the similar portion of rail 2,said extension 11 having a guard rail 12 projecting therefrom which issimilar to the guard rail 10 of main rail 2. Said guard rails 10 and 12provide clearance space between them for the operation of a frog switch13, which has a rod connection 14 with a bell crank lever 15 pivotallymounted on one end of a tie. A rod 16 connects lever 15 with switchstand 8, so that frog switch 18 will operate simultaneously with mainswitches 56.

It will be seen from the foregoing that angular extensions 9 and 11 ofthe main the siding rails provide an abutment for the free end of switch13 which prevents the wheels pounding the point thereof, and also thatsaid switch when in contact with either of said extensions forms acontinuation of the rail so that the wheels will smoothly ride onto theswitch. It will also be seen that the guard rails 10 and 12 being a partof the main and the siding rails, produce an economical structure forthe reason that no alteration is necessary in said rails other than theangular bend.

What I claim as my invention is 1. As a new article of manufacture, arail switch comprising a main rail and a siding rail extending at anangle thereto, intermediate main and siding rails between saidfirst-mentioned rails, said intermediate main and siding rails being ofsubstantially the same length and each comprising a comparatively longbody portion terminating in a right-angled extension of the same widthas said body portion and said right-angled extension terminating in acomparatively short angled-extension projecting at an angle to the mainbody portion, said angledextension terminating at its outer end in anoutwardly extending or flared projection or flange, saidangled-extensions constituting a switch-member pocket, that is providedat its inner end with right-angled shouldered portions of substantiallythe same width as the width of the body portion of the intermediaterails, and a switch member 'pivotally mounted in said switch-memberpocket and being provided with a comparatively broad inner end portionformed at right-angles to the body of said switch-member, the inner endportion normally parallel with the inner face of the engaged shoulderedportion of the pocket, the breadth of the inner end of the switch-memberbeing such as to constitute a continuation of the body portion of eitherintermediate rail, substantially as shown and described.

2. A switch mechanism comprising an outer main rail and an inner mainrail, an inner switch-rail and an outer switch-rail, the inner main railand the inner switchrail being of similar construction and each providedwith a body-portion having a right-angled shouldered extension, saidshouldered extension terminating in an outwardly-curved portion theshouldered portion having an inner surface formed at right-angles to thebody-portion, a switchmember fitted between the inner main rail and theinner switch-rail, and provided with a fiat end formed at right-anglesto the lonthe body of either said main rail or said 10 gitudinal axis ofthe same, whereby the end switch-member, substantially as shown.

of said switch-member can engage either of In testimony whereof .I affixmy signature the shouiodereibportions s %uare1y and conin presence oftwo witnesses.

stitutea roa earin sur 'ace or a continuous portion of the mei n railhaving substan- THOMAS DUNCAN tially the same thickness, the continuedends Witnesses:

of the main rail and the switch member be- H. C. SGHROEDER,

ing abutting in the plane at right-angles to E. G. GRAY.

